What does the author tell us in this passage?
A. How trees help prevent droughts and floods.
B. The relationship between trees and man.
C. How an empire fell to pieces in ancient times.
D. A story of trees.
A. How trees help prevent droughts and floods.
B. The relationship between trees and man.
C. How an empire fell to pieces in ancient times.
D. A story of trees.
【答案】
![下列程序的运行结果是（ ）。
class Shape\{
public Shape()\{
System.out.print("Shape");
\}
\}
class Circle extends Shape\{
public Circle()\{
System.out.print("Circle");
\}
\}
public class Test\{
public static void main(String[]args)\{
Sha](https://book-dl.com/assets/addons/cms/img/noimage.jpg)
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